Question

I am trying to send a custom object from one activity to another activity, but it’s crashing when I call the start activity.

Below is the snippet I used.

My Activity implements Serializable

ArrayList<CUSTOM_OBJECT> Cus_Obje_arraylist = new ArrayList<CUSTOM_OBJECT>();

Here is my intent :

Intent inte = new Intent(getApplicationContext(), ListActivity.class); `
inte.putExtra("list",Cus_Obje_arraylist);`
startActivity(inte);

Please let me know why it’s crashing or what alternate way I can use?

Answer 1

I can give a suggestion. I do this in my project.

1.Implement a singleton class as the bridge to pass object. (Hopefully you know what’s singleton, I you don’t, add comment to tell me.

class BridgeClass {
    private BridgeClass() {}

    static BridgeClass obj = nil;
    public BridgeClass instance() {
         if (obj == nil) obj = new BridgeClass();
         return obj;
    }

    public ArrayList<CUSTOM_OBJECT> cache;
 }

2.In the from activity,

BridgeClass.instance().cache = Cus_Obje_arraylist;

3.Then in the to activity, you can get it from the bridge class.

ArrayList<CUSTOM_OBJECT> Cus_Obje_arraylist = BridgeClass.instance().cache;